BBQ rub on vegetables — how to do it right

Vegetables on the BBQ: Don't underestimate them

Meat often gets all the attention on the BBQ, but vegetables can be just as impressive. With the right rub and technique, you'll get roasted flavors, a beautiful char, and a depth you'd never expect from the oven. Whether you're vegetarian or just want to get more out of your BBQ session – vegetables with rub are a revelation.

Why a rub works on vegetables

A dry rub adheres to the surface of vegetables and caramelizes during grilling. The spices enhance the natural sweetness of vegetables like bell peppers and corn, or add depth to earthy vegetables like eggplant and zucchini. The result: more flavor, more color, more character.

Which vegetables work best?

• Bell Pepper — becomes sweet and tender, absorbs rub well
• Zucchini — cooks quickly, ideal for direct heat
• Eggplant — creamy inside, crispy outside
• Corn — classic BBQ vegetable, perfect with a spicy rub
• Cauliflower — surprisingly good when cut into steaks
• Mushrooms — absorb rub and smoke like a sponge
• Sweet Potato — sweet and firm, ideal for indirect grilling

Preparation

Cut vegetables into uniform pieces so they cook evenly. Lightly coat them with olive oil — this helps the rub adhere and prevents burning. Then generously apply your rub and let the vegetables rest for 15–30 minutes to allow the spices to penetrate.

Which rub should you use?

Your choice of rub depends on the vegetable and the desired flavor profile:

• Sweet & Warm — paprika, garlic, mild chili: ideal for corn, sweet potato, and bell pepper
• Spicy & Smoky — chipotle, cumin, cayenne: perfect for eggplant and cauliflower
• Herby & Fresh — oregano, thyme, lemon zest: delicious on zucchini and mushrooms

The rubs from The Rub Kitchen are versatile enough for both meat and vegetables — feel free to experiment. Also check out our vegetarian BBQ guide for more inspiration.

Direct or indirect heat?

Most vegetables go on direct heat at 180–220°C (350–425°F). Keep them moving and turn regularly. Thicker vegetables like cauliflower steak or sweet potato are better done over indirect heat at 160–180°C (325–350°F), so they cook through without burning.

More autumn vegetables on the BBQ

Also discover: parsnip on the BBQ and pumpkin on the BBQ — two autumn classics that are perfect with a dry rub.

Tips from The Rub Kitchen

• Use a grill basket for small vegetables like cherry tomatoes or green beans
• Add a splash of lemon juice after grilling for extra freshness
• You can grill corn in its husk first, then sprinkle with rub and butter
• Cut cauliflower steaks 2–3 cm (1 inch) thick and treat them like a piece of meat
• Don't let grilled vegetables sit too long — they are best straight off the BBQ

Serving

Serve grilled vegetables as a side dish alongside meat, or as a main course with yogurt sauce, hummus, or tahini. An extra pinch of rub just before serving gives a fresh herb boost.

→ Starter Pack — 3 flavors of your choice · View all rubs